Prime and Composite Numbers

The video tutorial explains the concept of divisibility using the number 24 as an example. It highlights that numbers divisible by a given number without a remainder are its factors. The tutorial further distinguishes between prime numbers, which have only one and itself as factors, and composite numbers, which have more than two factors. The lesson concludes with a brief farewell.

Which of the following numbers can divide 24 without leaving a remainder?

• 5

• 6

• 7

• 9

Which number is not a factor of 24?

• 12

• 8

• 5

• 6

Which of the following numbers is a factor of both 12 and 24?

• 9

• 7

• 6

• 5

What is a common factor of any number?

• 1

• 2

• 3

• 0

Which of the following is always a factor of any number?

• 3

• 2

• The number itself

• 5

What is the largest factor of any number?

• 0

• 2

• The number itself

• 1

What defines a prime number?

• It has two factors: 1 and itself

• It has only one factor

• It is an even number

• It has more than two factors

Which of the following is a prime number?

• 5

• 6

• 4

• 8

If a number has only 1 and itself as factors, what is it called?

• Prime

• Odd

• Even

• Composite

What is the smallest prime number?

• 4

• 2

• 1

• 3